I'll be doing a full calibration of the power supply once I dig out some molex pins to connect the +/-15V outputs to the sensing inputs. I can't seem to squeeze alligator clips into the harness to short the pins. Thanks for your help, I'll likely power it up after this and things you mentioned are done. I did a few things that may have caused a short in the system, most notably touching the card riser +15V power rail to the back of the keyboard, where all the PCB's and wires are. Hoping I didn't discharge any cap voltages into the KAS chips. Also jiggled some wires while it was powered up (all oscillators were firing at this point) and heard a popping noise, which may have been the fuse blowing, and then the synth went dead. Was told by a tech to check for resistance from the power rail to ground and got 70 ohms, which made my continuity tester emit a quick beep, which I assumed meant the possibility of a partial short.

Thanks, Gary, I'll keep the polarity trick in mind. I have been on the the Rogoff site and printed out the schematics. He also runs the Yahoo CS-80 page. Here are the resistances I'm getting between the power rails and ground:

+15V = 70.3 Ohms

-15V = 64.5 Ohms

+8.5V = 337 Ohms

-6.5V = 878 Ohms
+10.6V = 540 Ohms

I'm thinking the -6.5V could be low, as a friend of mine is getting 3.95 Kohms on his currently working CS-80, as well as 456 Ohms on the +8.5. If anyone can take similar readings on their own CS-80, it'd be immensely appreciated.

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